Data as of: DVSA MOT results to 2025
Kawasaki ZR-7S vs Suzuki GSF600
The Kawasaki ZR-7S passes its MOT first time more often than the Suzuki GSF600: 83.7% vs 77.3%, a 6.4-point lead.
MOT reliability, side by side
| Metric | Kawasaki ZR-7S | Suzuki GSF600 |
|---|---|---|
| First-time pass rate | 83.7% | 77.3% |
| Outright fail rate | 10.3% | 14.2% |
| Vs comparable bikes (age & mileage adjusted) | -0.8 pts | -6.1 pts |
| Engine size | 738cc | 599cc |
| Rank among all models | #2819 of 5428 | #4013 of 5428 |
| Median miles at test | 17,575 | 21,080 |
| MOT tests analysed | 3,879 | 143,023 |
| Most common failure | brakes | brakes |
First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.
"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.
What fails, side by side
| Component | Kawasaki ZR-7S | Suzuki GSF600 |
|---|---|---|
| Lights & signalling | 3.7% | 6.7% |
| Brakes | 3.7% | 6.1% |
| Steering & suspension | 3.1% | 3.6% |
| Tyres & wheels | 3.1% | 3.3% |
| Drive system | 1.0% | 1.4% |
| Structure & body | 0.6% | 1.5% |
| Fuel & exhaust | 0.2% | 1.2% |
A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.
Pass rate by test year
| Test year | Kawasaki ZR-7S | Suzuki GSF600 |
|---|---|---|
| 2018 | 80.3% | 77.7% |
| 2019 | 82.4% | 76.7% |
| 2020 | 80.9% | 77.8% |
| 2021 | 81.8% | 76.8% |
| 2022 | 80.4% | 78.1% |
| 2023 | 82.6% | 78.2% |
| 2024 | 80.5% | 78.9% |
| 2025 | 84.7% | 79.6% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Kawasaki ZR-7S | Suzuki GSF600 |
|---|---|---|
| 0k-10k miles | 91.7% | 86.8% |
| 10k-20k miles | 85.2% | 80.1% |
| 20k-30k miles | 79.2% | 75.2% |
| 30k-40k miles | 77.3% | 71.3% |
| 40k-50k miles | 78.1% | 69.4% |
| 50k-60k miles | 70.6% | 68.3% |
Bands with fewer than 30 tests for either bike are left out.
Kawasaki ZR-7S vs Suzuki GSF600 FAQ
Which is more reliable, the Kawasaki ZR-7S or the Suzuki GSF600?
The Kawasaki ZR-7S passes its MOT first time more often than the Suzuki GSF600: 83.7% vs 77.3%, a 6.4-point lead. Adjusted for age, mileage and test class, the Kawasaki ZR-7S still comes out ahead: -0.8 points vs comparable bikes for the Kawasaki ZR-7S, -6.1 for the Suzuki GSF600. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Kawasaki ZR-7S fail its MOT on most?
Lights & signalling: 3.7% of Kawasaki ZR-7S MOT tests failed on it, then brakes (3.7%).
What does the Suzuki GSF600 fail its MOT on most?
Lights & signalling: 6.7% of Suzuki GSF600 MOT tests failed on it, then brakes (6.1%).
Which holds up better at high mileage, the Kawasaki ZR-7S or the Suzuki GSF600?
At 50k-60k miles the Kawasaki ZR-7S passes first time more often: 70.6% for the Kawasaki ZR-7S vs 68.3% for the Suzuki GSF600.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.